2091797701 has 12 divisors (see below), whose sum is σ = 2499083148. Its totient is φ = 1744509312.

The previous prime is 2091797683. The next prime is 2091797711. The reversal of 2091797701 is 1077971902.

It can be written as a sum of positive squares in 2 ways, for example, as 1193357025 + 898440676 = 34545^2 + 29974^2 .

It is not a de Polignac number, because 2091797701 - 2⁹ = 2091797189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091797711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 575076 + ... + 578701.

It is an arithmetic number, because the mean of its divisors is an integer number (208256929).

Almost surely, 2^2091797701 is an apocalyptic number.

It is an amenable number.

2091797701 is a deficient number, since it is larger than the sum of its proper divisors (407285447).

2091797701 is a wasteful number, since it uses less digits than its factorization.

2091797701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1153828 (or 1153821 counting only the distinct ones).

The product of its (nonzero) digits is 55566, while the sum is 43.

The square root of 2091797701 is about 45736.1749712413. The cubic root of 2091797701 is about 1278.9097366918.

The spelling of 2091797701 in words is "two billion, ninety-one million, seven hundred ninety-seven thousand, seven hundred one".